Virus | No. detected (MNCP/RIDT)a | Sensitivity (%) (95% CI) | Specificity (%) (95% CI) | PPVs (%) (95% CI) | NPVs (%) (95% CI) | Overall concordance rate (%) (95% CI) | P value (McNemar’s test) | Kappa value (95% CI) | |||
---|---|---|---|---|---|---|---|---|---|---|---|
+/+ | +/− | −/+ | −/− | ||||||||
Influenza A | 20 | 74 | 0 | 161 | 100.00 (79.95–100.00) | 68.51 (62.10–74.31) | 21.28 (13.78–31.17) | 100.00 (97.10–100.00) | 70.98 (65.41–76.55 | < 0.001 | 0.25** (0.11–0.40) |
Influenza B | 54 | 41 | 1 | 163 | 98.18 (89.00–99.91) | 79.90 (73.61–85.04) | 56.84 (46.29–66.84) | 99.39 (96.14–99.97) | 83.78 (79.29–88.27) | < 0.001 | 0.62** (0.51–0.72) |